Need alternate powder

Due to the increasingly impossible task of trying to find Varget, I am looking around for a possible alternate powder to use. I know almost all powder is impossible to find right now, but it seems like the popularity of varget is making it even worse. I want to try to keep 1 powder that I can shoot my .223 (75gr Hornady BTHP), and my .308 (165-168gr bullets). Varget was the ideal one until the current reloading crisis started. Thanks for the input!